structuredAttrs is enabled

trying https://github.com/Nano-Collective/nanocoder/archive/refs/tags/v1.29.0.tar.gz
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed
  0      0   0      0   0      0      0      0                              0
100  2.84M   0  2.84M   0      0  4.04M      0                              0
unpacking source archive /nix/var/nix/builds/nix-47659-3673916124/download.tar.gz